Final answer:
Yes, a staffing company should develop a substance abuse policy if it requires drug testing.
Step-by-step explanation:
Yes, a staffing company should develop a substance abuse policy if it requires drug testing. This policy helps ensure a safe and healthy work environment for all employees and reduces the risk of accidents or incidents related to substance abuse. The policy should outline the company's stance on drug testing, consequences for violations, and resources for employees who may need assistance with substance abuse issues. Some examples of staffing agencies with substance abuse policies include Adecco and Robert Half.